policy := "mypolicy"
	policyBytes := []byte(fmt.Sprintf(`{
  "Version": "2012-10-17",
  "Statement": [
   {
    "Sid": "ObjectActionsRW",
    "Effect": "Allow",
    "Action": [
     "s3:PutObject",
     "s3:PutObjectTagging",
     "s3:AbortMultipartUpload",
     "s3:DeleteObject",
     "s3:GetObject",
     "s3:GetObjectTagging",
     "s3:GetObjectVersion",
     "s3:ListMultipartUploadParts"
    ],

		}
	}
}

// Wrapper for calling PutObject API handler tests using streaming signature v4 for both Erasure multiple disks and FS single drive setup.
func TestAPIPutObjectStreamSigV4Handler(t *testing.T) {
	defer DetectTestLeak(t)()
	ExecExtendedObjectLayerAPITest(t, testAPIPutObjectStreamSigV4Handler, []string{"PutObject"})
}

	partSize, err := optimalPartSize(length)
	if err != nil {
		return remoteVersionID(""), err
	}
	res, err := m.client.PutObject(ctx, m.Bucket, m.getDest(object), r, length, minio.PutObjectOptions{
		StorageClass:         m.StorageClass,
		PartSize:             uint64(partSize),
		DisableContentSha256: true,
	})

	if err != nil {
		return nil, err
	}
	config.drivercache[tierName] = d
	return d, nil
}

// configReader returns a PutObjReader and ObjectOptions needed to save config
// using a PutObject API. PutObjReader encrypts json encoded tier configurations
// if KMS is enabled, otherwise simply yields the json encoded bytes as is.
// Similarly, ObjectOptions value depends on KMS' status.

	}

	pr, pw := io.Pipe()

	wa := &writerAt{
		buffer: make(map[int64][]byte),
		w:      pw,
		r:      pr,
		wg:     &sync.WaitGroup{},
	}
	wa.wg.Add(1)
	go func() {
		_, err := clnt.PutObject(r.Context(), bucket, object, pr, -1, minio.PutObjectOptions{
			ContentType:          mimedb.TypeByExtension(path.Ext(object)),
			DisableContentSha256: true,
		})
		pr.CloseWithError(err)
		wa.wg.Done()
	}()

	Transition          TransitionOptions
	Expiration          ExpirationOptions
	LifecycleAuditEvent lcAuditEvent

	WantChecksum *hash.Checksum // x-amz-checksum-XXX checksum sent to PutObject/ CompleteMultipartUpload.

	NoDecryption                        bool      // indicates if the stream must be decrypted.
	PreserveETag                        string    // preserves this etag during a PUT call.

	return er.putObject(ctx, bucket, object, data, opts)
}

// putObject wrapper for erasureObjects PutObject
func (er erasureObjects) putObject(ctx context.Context, bucket string, object string, r *PutObjReader, opts ObjectOptions) (objInfo ObjectInfo, err error) {
	if !opts.NoAuditLog {
		auditObjectErasureSet(ctx, object, &er)
	}

	data := r.Reader

	if opts.CheckPrecondFn != nil {
		if !opts.NoLock {

		defer lk.RUnlock(lkctx)
	}

	objInfo, _, err = z.getLatestObjectInfoWithIdx(ctx, bucket, object, opts)
	return objInfo, err
}

// PutObject - writes an object to least used erasure pool.
func (z *erasureServerPools) PutObject(ctx context.Context, bucket string, object string, data *PutObjReader, opts ObjectOptions) (ObjectInfo, error) {
	// Validate put object input args.

		metadata[xhttp.AmzObjectTagging] = objTags
	}

	var (
		md5hex              = clientETag.String()
		sha256hex           = ""
		rd        io.Reader = r.Body
		s3Err     APIErrorCode
		putObject = objectAPI.PutObject
	)

	// Check if put is allowed
	if s3Err = isPutActionAllowed(ctx, rAuthType, bucket, object, r, policy.PutObjectAction); s3Err != ErrNone {

	return set.GetObjectNInfo(ctx, bucket, object, rs, h, opts)
}

// PutObject - writes an object to hashedSet based on the object name.
func (s *erasureSets) PutObject(ctx context.Context, bucket string, object string, data *PutObjReader, opts ObjectOptions) (objInfo ObjectInfo, err error) {
	set := s.getHashedSet(object)
	return set.PutObject(ctx, bucket, object, data, opts)
}